849745942 has 8 divisors (see below), whose sum is σ = 1279697832. Its totient is φ = 423180000.

The previous prime is 849745931. The next prime is 849745943. The reversal of 849745942 is 249547948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 849745942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849745943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845859 + ... + 846862.

It is an arithmetic number, because the mean of its divisors is an integer number (159962229).

Almost surely, 2^849745942 is an apocalyptic number.

849745942 is a deficient number, since it is larger than the sum of its proper divisors (429951890).

849745942 is a wasteful number, since it uses less digits than its factorization.

849745942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692974.

The product of its digits is 2903040, while the sum is 52.

The square root of 849745942 is about 29150.4020898512. The cubic root of 849745942 is about 947.1738508898.

The spelling of 849745942 in words is "eight hundred forty-nine million, seven hundred forty-five thousand, nine hundred forty-two".